Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 75mm stroke, PT1/8 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.
- BoreØ40 mm
- Stroke75 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- ConfigurationStandard compact
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB
The B02-ACQ40X75SB is a double-acting JIS compact cylinder delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The leading "B02-" prefix designates this as AirTAC's welding-industry dedicated variant of the base ACQ40X75SB, mechanically identical to the standard line but targeted at welding-line automation. It utilizes a short C-clip and riveted piston-to-rod assembly to drastically reduce overall axial length compared to conventional round-body units.
This specific configuration includes a built-in piston magnet (-S) for position sensing and a male-threaded piston rod (-B) sized at M14x1.5 for direct load coupling. Deceleration is handled by fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. The Ø40 mm bore features a hard-anodized inner wall and uses a PT1/8 port, operating reliably at speeds between 30 and 500 mm/s.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).
Where the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB Is Used
Robot Welding Cell Clamping
Provides 628.3 N of clamping force at 0.5 MPa to hold mild steel assemblies in place within a robotic spot-welding cell, using the 75 mm stroke to clear the robot arm during indexing.
Fixture Positioning
Actuates locating pins on a welding jig, where the male M14x1.5 rod thread secures the tooling and the compact C-clip body saves valuable axial depth inside a tight fixture frame.
Part Ejection from Jigs
Pushes completed welded brackets out of the fixture using the 527.8 N retract pull force, with the -S magnet triggering a solid-state switch to confirm ejection before the conveyor advances.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB the Right Cylinder?
When sizing this actuator, stepping down to a Ø32 mm bore yields 402.1 N push at 0.5 MPa, while stepping up to a Ø50 mm bore provides 981.8 N push at 0.5 MPa. This 75 mm stroke sits well within the 100 mm standard limit for this bore size. To confirm your ordering essentials: specify the 40 mm bore, 75 mm stroke, PT1/8 port, the required -S magnet, and the -B male rod thread.
Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the directional valve is centered; the rod will drift, and the fixed bumper only decelerates the piston near the stroke end. For fail-safe load holding in a vertical welding fixture, an external rod lock or pilot-operated check valve is required.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75SB FAQ
At 0.5 MPa, the push force is 628.3 N and the pull force is 527.8 N. At 0.7 MPa, the push force reaches 879.6 N, with a maximum push capacity of 128 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, proof pressure is 1.5 MPa, and the operating speed range is 30-500 mm/s.
The B02- prefix indicates this is AirTAC's welding-industry dedicated variant of the ACQ40X75SB; mechanically, it shares the exact same specifications and physical dimensions as the base model. It uses fixed NBR elastomer bumpers at the stroke ends, which are not field-adjustable, so for high-energy welding automation loads you should add an external shock absorber or slow the approach speed.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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